A detailed magnetometer survey was carried out within three small fields on land to the south of Bristol Airport in North Somerset using a Bartington Grad 601-2 gradiometer. The survey revealed a number of positive linear, discrete and amorphous anomalies, as wells as areas of negative responses. There is no clear or coherent morphology to determine which of the responses could relate to cut ditch-like and pit-like features and which relate to soil filled joints and cracks within the underlying limestone geology.